[SCSI] remove scsi_request infrastructure

With Achim patch the last user (gdth) is switched away from scsi_request
so we an kill it now.  Also disables some code in i2o_scsi that was
broken since the sg driver stopped using scsi_requests.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

5 files changed, 0 insertions, 91 deletions

diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 7602b9b15a03..b0caabec1bd1 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -9,7 +9,6 @@
 struct request;
 struct scatterlist;
 struct scsi_device;
-struct scsi_request;
 
 
 /* embedded in scsi_cmnd */
@@ -29,13 +28,8 @@ struct scsi_pointer {
 };
 
 struct scsi_cmnd {
-        int     sc_magic;
-
         struct scsi_device *device;
-        struct scsi_request *sc_request;
-
         struct list_head list;  /* scsi_cmnd participates in queue lists */
-
         struct list_head eh_entry; /* entry for the host eh_cmd_q */
         int eh_eflags;          /* Used by error handlr */
         void (*done) (struct scsi_cmnd *);      /* Mid-level done function */
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 4d69dee66d4d..3bbbfbe8cbfc 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -2,14 +2,12 @@
 #define _SCSI_SCSI_DBG_H
 
 struct scsi_cmnd;
-struct scsi_request;
 struct scsi_sense_hdr;
 
 extern void scsi_print_command(struct scsi_cmnd *);
 extern void scsi_print_sense_hdr(const char *, struct scsi_sense_hdr *);
 extern void __scsi_print_command(unsigned char *);
 extern void scsi_print_sense(const char *, struct scsi_cmnd *);
-extern void scsi_print_req_sense(const char *, struct scsi_request *);
 extern void __scsi_print_sense(const char *name,
                                const unsigned char *sense_buffer,
                                int sense_len);
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index d160880b2a87..c5c0f6762a01 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -3,7 +3,6 @@
 
 struct scsi_cmnd;
 struct scsi_device;
-struct scsi_request;
 struct Scsi_Host;
 
 /*
@@ -43,8 +42,6 @@ extern void scsi_report_device_reset(struct Scsi_Host *, int, int);
 extern int scsi_block_when_processing_errors(struct scsi_device *);
 extern int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
                 struct scsi_sense_hdr *sshdr);
-extern int scsi_request_normalize_sense(struct scsi_request *sreq,
-                struct scsi_sense_hdr *sshdr);
 extern int scsi_command_normalize_sense(struct scsi_cmnd *cmd,
                 struct scsi_sense_hdr *sshdr);
 
diff --git a/include/scsi/scsi_request.h b/include/scsi/scsi_request.h
deleted file mode 100644
index 98d69fdb851c..000000000000
--- a/include/scsi/scsi_request.h
+++ /dev/null
@@ -1,54 +0,0 @@
-#ifndef _SCSI_SCSI_REQUEST_H
-#define _SCSI_SCSI_REQUEST_H
-
-#include <scsi/scsi_cmnd.h>
-
-struct request;
-struct scsi_cmnd;
-struct scsi_device;
-struct Scsi_Host;
-
-
-/*
- * This is essentially a slimmed down version of Scsi_Cmnd.  The point of
- * having this is that requests that are injected into the queue as result
- * of things like ioctls and character devices shouldn't be using a
- * Scsi_Cmnd until such a time that the command is actually at the head
- * of the queue and being sent to the driver.
- */
-struct scsi_request {
-        int     sr_magic;
-        int     sr_result;      /* Status code from lower level driver */
-        unsigned char sr_sense_buffer[SCSI_SENSE_BUFFERSIZE];           /* obtained by REQUEST SENSE
-                                                 * when CHECK CONDITION is
-                                                 * received on original command 
-                                                 * (auto-sense) */
-
-        struct Scsi_Host *sr_host;
-        struct scsi_device *sr_device;
-        struct scsi_cmnd *sr_command;
-        struct request *sr_request;     /* A copy of the command we are
-                                   working on */
-        unsigned sr_bufflen;    /* Size of data buffer */
-        void *sr_buffer;                /* Data buffer */
-        int sr_allowed;
-        enum dma_data_direction sr_data_direction;
-        unsigned char sr_cmd_len;
-        unsigned char sr_cmnd[MAX_COMMAND_SIZE];
-        void (*sr_done) (struct scsi_cmnd *);   /* Mid-level done function */
-        int sr_timeout_per_command;
-        unsigned short sr_use_sg;       /* Number of pieces of scatter-gather */
-        unsigned short sr_sglist_len;   /* size of malloc'd scatter-gather list */
-        unsigned sr_underflow;  /* Return error if less than
-                                   this amount is transferred */
-        void *upper_private_data;       /* reserved for owner (usually upper
-                                           level driver) of this request */
-};
-
-extern struct scsi_request *scsi_allocate_request(struct scsi_device *, gfp_t);
-extern void scsi_release_request(struct scsi_request *);
-extern void scsi_do_req(struct scsi_request *, const void *cmnd,
-                        void *buffer, unsigned bufflen,
-                        void (*done) (struct scsi_cmnd *),
-                        int timeout, int retries);
-#endif /* _SCSI_SCSI_REQUEST_H */
diff --git a/include/scsi/sg_request.h b/include/scsi/sg_request.h
deleted file mode 100644
index 57ff525bdd3b..000000000000
--- a/include/scsi/sg_request.h
+++ /dev/null
@@ -1,26 +0,0 @@
-typedef struct scsi_request Scsi_Request;
-
-static Scsi_Request *dummy_cmdp;        /* only used for sizeof */
-
-typedef struct sg_scatter_hold { /* holding area for scsi scatter gather info */
-        unsigned short k_use_sg; /* Count of kernel scatter-gather pieces */
-        unsigned short sglist_len; /* size of malloc'd scatter-gather list ++ */
-        unsigned bufflen;       /* Size of (aggregate) data buffer */
-        unsigned b_malloc_len;  /* actual len malloc'ed in buffer */
-        void *buffer;           /* Data buffer or scatter list (k_use_sg>0) */
-        char dio_in_use;        /* 0->indirect IO (or mmap), 1->dio */
-        unsigned char cmd_opcode; /* first byte of command */
-} Sg_scatter_hold;
-
-typedef struct sg_request {     /* SG_MAX_QUEUE requests outstanding per file */
-        Scsi_Request *my_cmdp;  /* != 0  when request with lower levels */
-        struct sg_request *nextrp;      /* NULL -> tail request (slist) */
-        struct sg_fd *parentfp; /* NULL -> not in use */
-        Sg_scatter_hold data;   /* hold buffer, perhaps scatter list */
-        sg_io_hdr_t header;     /* scsi command+info, see <scsi/sg.h> */
-        unsigned char sense_b[sizeof (dummy_cmdp->sr_sense_buffer)];
-        char res_used;          /* 1 -> using reserve buffer, 0 -> not ... */
-        char orphan;            /* 1 -> drop on sight, 0 -> normal */
-        char sg_io_owned;       /* 1 -> packet belongs to SG_IO */
-        volatile char done;     /* 0->before bh, 1->before read, 2->read */
-} Sg_request;